The Acorn application guide

AV Analyser

A spectrogram plots sound frequency over time. Here, a ten-second test recording contains two tones and a known two-second silence. Compare the plot with those known sounds and review the exported results.

Constructed test example

Check a recording against known sound and silence

Example input

A generated ten-second mono WAV containing two tones and a known silence.

Result or controls shown

An export pack including demonstrated spectrogram and silence-measurement outputs.

AV Analyser: check a recording against known sound and silence in the training example. — A generated ten-second WAV contains two tones separated by a known two-second silence. The spectrogram and exported results can be compared with that input.

Enlarge the screenshot to read the source records.

Examination steps

Steps to review in your evaluation

Review the source metadata and define the feature being measured.
Inspect the generated spectrogram and silence measurements.
Separate a measured gap or pattern from a conclusion that the recording was edited.

Related application guides

Start with your requirements

Request an application demo

Tell us the source type and task you want to examine. We can plan a demo using suitable training material. Do not send confidential evidence.